Many new island starters often complain of not getting a sapling and have to start over. It would save hassle and effort for those people. Anyway, a free sapling isn't going to do any harm to the economy.
Support Because It will help new players and won't hurt the economy which is the same reasons as cougar said
Support. I have no idea why they took it out in the first place. The number one thing I give to noobies to help them get started is a sapling because their tree didn't drop one.
100% support, even though I like giving out free saplings this will make our life easier and save time, instead of giving them one we can say: "Do /kit sapling if you lost your sapling".
Additional suggestion to this: Have a broadcast advertising /kit sapling if this were to be added. Also, let non-donors see broadcasts if they couldn't already.